US Bridges

Green Valley RD over N Br Green Valley Creek

Fair

San Luis Obispo County, California · 0.3 MI N SR 46 · Structure no. 49C0291

Built
1958
67 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
52 ft
3 main spans
Daily traffic
50
2010 count
Owner
County
County Highway Agency

About this bridge

Green Valley RD over N Br Green Valley Creek is a wood or timber stringer/multi-beam or girder carrying Green Valley RD over N Br Green Valley Creek in San Luis Obispo County, California. It was built in 1958, so it is 67 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, projected to reach 81 by 2046. The structure is 52 ft (15.8 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGreen Valley RD
CrossesN Br Green Valley Creek
Location0.3 MI N SR 46
RouteCounty Highway 0
Coordinates35.54267, -121.01064
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating30 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length52 ft (15.8 m)
Longest span21 ft (6.4 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2010)
Projected traffic81 by 2046
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Green Valley RD over N Br Green Valley Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Green Valley RD over N Br Green Valley Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does Green Valley RD over N Br Green Valley Creek carry?

About 50 vehicles per day (2010 count).

How long is Green Valley RD over N Br Green Valley Creek?

The structure is 52 ft (15.8 m) long with a longest span of 21 ft (6.4 m) and a deck 18 ft wide.

Who owns Green Valley RD over N Br Green Valley Creek?

It is owned by the County Highway Agency.